378542215 has 8 divisors (see below), whose sum is σ = 455857488. Its totient is φ = 301762560.

The previous prime is 378542189. The next prime is 378542221. The reversal of 378542215 is 512245873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378542215 - 2²¹ = 376445063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132346 + ... + 135175.

It is an arithmetic number, because the mean of its divisors is an integer number (56982186).

Almost surely, 2^378542215 is an apocalyptic number.

378542215 is a deficient number, since it is larger than the sum of its proper divisors (77315273).

378542215 is a wasteful number, since it uses less digits than its factorization.

378542215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267809.

The product of its digits is 67200, while the sum is 37.

The square root of 378542215 is about 19456.1613634345. The cubic root of 378542215 is about 723.3882324112.

The spelling of 378542215 in words is "three hundred seventy-eight million, five hundred forty-two thousand, two hundred fifteen".